pub struct Serialized<T> {
    pub value: T,
    pub key: Option<String>,
    pub profile: Profile,
    /* private fields */
}
Expand description

A Provider that sources values directly from a serialize type.

§Provider Details

  • Profile

    This provider does not set a profile.

  • Metadata

    This provider is named T (via std::any::type_name). The source location is set to the call site of the constructor.

  • Data (Unkeyed)

    When data is not keyed, T is expected to serialize to a Dict and is emitted directly as the value for the configured profile.

  • Data (Keyed)

    When keyed (Serialized::default(), Serialized::global(), Serialized::key()), T can serialize to any Value and is emitted as the value of the configured key key path. Nested dictionaries are created for every path component delimited by . in the key string, each dictionary mapping the path component to the child, with the leaf mapping to the serialized T. For instance, a.b.c results in { a: { b: { c: T }}}.

Fields§

§value: T

The value to be serialized and used as the provided data.

§key: Option<String>

The key path (a.b.c) to emit the value to or the root if None.

§profile: Profile

The profile to emit the value to. Defaults to Profile::Default.

Implementations§

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impl<T> Serialized<T>

pub fn from<P>(value: T, profile: P) -> Serialized<T>
where P: Into<Profile>,

Constructs an (unkeyed) provider that emits value, which must serialize to a dict, to the profile.

use serde::Deserialize;
use figment::{Figment, Jail, providers::Serialized, util::map};

#[derive(Debug, PartialEq, Deserialize)]
struct Config {
    numbers: Vec<usize>,
}

Jail::expect_with(|jail| {
    let map = map!["numbers" => &[1, 2, 3]];

    // This is also `Serialized::defaults(&map)`;
    let figment = Figment::from(Serialized::from(&map, "default"));
    let config: Config = figment.extract()?;
    assert_eq!(config, Config { numbers: vec![1, 2, 3] });

    // This is also `Serialized::defaults(&map).profile("debug")`;
    let figment = Figment::from(Serialized::from(&map, "debug"));
    let config: Config = figment.select("debug").extract()?;
    assert_eq!(config, Config { numbers: vec![1, 2, 3] });

    Ok(())
});

pub fn defaults(value: T) -> Serialized<T>

Emits value, which must serialize to a Dict, to the Default profile.

Equivalent to Serialized::from(value, Profile::Default).

See Serialized::from().

pub fn globals(value: T) -> Serialized<T>

Emits value, which must serialize to a Dict, to the Global profile.

Equivalent to Serialized::from(value, Profile::Global).

See Serialized::from().

pub fn default(key: &str, value: T) -> Serialized<T>

Emits a nested dictionary to the Default profile keyed by key key path with the final key mapping to value.

See Data (keyed) for key path details.

Equivalent to Serialized::from(value, Profile::Default).key(key).

See Serialized::from() and Serialized::key().

pub fn global(key: &str, value: T) -> Serialized<T>

Emits a nested dictionary to the Global profile keyed by key with the final key mapping to value.

See Data (keyed) for key path details.

Equivalent to Serialized::from(value, Profile::Global).key(key).

See Serialized::from() and Serialized::key().

pub fn profile<P>(self, profile: P) -> Serialized<T>
where P: Into<Profile>,

Sets the profile to emit the serialized value to.

use figment::{Figment, Jail, providers::Serialized};

Jail::expect_with(|jail| {
    // This is also `Serialized::defaults(&map)`;
    let figment = Figment::new()
        .join(Serialized::default("key", "hey").profile("debug"))
        .join(Serialized::default("key", "hi"));

    let value: String = figment.extract_inner("key")?;
    assert_eq!(value, "hi");

    let value: String = figment.select("debug").extract_inner("key")?;
    assert_eq!(value, "hey");

    Ok(())
});

pub fn key(self, key: &str) -> Serialized<T>

Sets the key path to emit the serialized value to.

See Data (keyed) for key path details.

use figment::{Figment, Jail, providers::Serialized};

Jail::expect_with(|jail| {
    // This is also `Serialized::defaults(&map)`;
    let figment = Figment::new()
        .join(Serialized::default("key", "hey").key("other"))
        .join(Serialized::default("key", "hi"));

    let value: String = figment.extract_inner("key")?;
    assert_eq!(value, "hi");

    let value: String = figment.extract_inner("other")?;
    assert_eq!(value, "hey");

    Ok(())
});

Trait Implementations§

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impl<T> Clone for Serialized<T>
where T: Clone,

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fn clone(&self) -> Serialized<T>

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T> Debug for Serialized<T>
where T: Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl<T> Provider for Serialized<T>
where T: Serialize,

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fn metadata(&self) -> Metadata

Returns the Metadata for this provider, identifying itself and its configuration sources.
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fn data(&self) -> Result<BTreeMap<Profile, BTreeMap<String, Value>>, Error>

Returns the configuration data.
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fn profile(&self) -> Option<Profile>

Optionally returns a profile to set on the Figment this provider is merged into. The profile is only set if self is merged.

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impl<T> RefUnwindSafe for Serialized<T>
where T: RefUnwindSafe,

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impl<T> Send for Serialized<T>
where T: Send,

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where T: Sync,

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fn get_result<'query, 'conn, U>( self, conn: &'conn mut Conn ) -> AndThen<Self::LoadFuture<'conn>, Map<StreamFuture<Pin<Box<Self::Stream<'conn>>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>>>)) -> Result<U, Error>>, fn(_: Self::Stream<'conn>) -> Map<StreamFuture<Pin<Box<Self::Stream<'conn>>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>>>)) -> Result<U, Error>>>
where U: Send + 'conn, Conn: AsyncConnection, Self: LoadQuery<'query, Conn, U> + 'query,

Runs the command, and returns the affected row. Read more
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fn get_results<'query, 'conn, U>( self, conn: &'conn mut Conn ) -> AndThen<Self::LoadFuture<'conn>, TryCollect<Self::Stream<'conn>, Vec<U>>, fn(_: Self::Stream<'conn>) -> TryCollect<Self::Stream<'conn>, Vec<U>>>
where U: Send, Conn: AsyncConnection, Self: LoadQuery<'query, Conn, U> + 'query,

Runs the command, returning an Vec with the affected rows. Read more
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fn first<'query, 'conn, U>( self, conn: &'conn mut Conn ) -> AndThen<<Self::Output as LoadQuery<'query, Conn, U>>::LoadFuture<'conn>, Map<StreamFuture<Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>)) -> Result<U, Error>>, fn(_: <Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>) -> Map<StreamFuture<Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>)) -> Result<U, Error>>>
where U: Send + 'conn, Conn: AsyncConnection, Self: LimitDsl, Self::Output: LoadQuery<'query, Conn, U> + Send + 'query,

Attempts to load a single record. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<Source> Sculptor<HNil, HNil> for Source

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type Remainder = Source

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fn sculpt(self) -> (HNil, <Source as Sculptor<HNil, HNil>>::Remainder)

Consumes the current HList and returns an HList with the requested shape. Read more
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impl<T> Tap for T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more